socket通信实现server端和client端互发消息

骑猪看日落 2022-08-26 15:28 163阅读 0赞

案例主要考察了socket、io流知识。

Server端代码：

ServerSocket server=new ServerSocket(1234);
    		Socket client=server.accept();
    		BufferedReader br=new BufferedReader(new InputStreamReader(client.getInputStream()));
    		PrintWriter pw=new PrintWriter(client.getOutputStream());
    		BufferedReader bw=new BufferedReader(new InputStreamReader(System.in));
    		while(true){
    			String str=br.readLine();
    			System.out.println("accept client info:"+str);
    			String send=bw.readLine();
    //			System.out.println("answer message...");
    			pw.println("send:"+send);
    			pw.println("server已接收info....");
    			pw.flush();
    			if(send.equals("交易结束"))
    				break;
    		}
    		client.close();

client端代码：

Socket socket=new Socket(InetAddress.getLocalHost(),1234);
    			BufferedReader br=new BufferedReader(new InputStreamReader(socket.getInputStream()));//接收server消息
    			PrintWriter pw=new PrintWriter(socket.getOutputStream());
    			BufferedReader bw=new BufferedReader(new InputStreamReader(System.in));//send info
    			while(true){
    				System.out.println("client begin send message...");
    				String str=bw.readLine();
    				pw.println("str："+str);
    				pw.flush();
    				if(str.equals("交易结束")){
    					break;
    				}
    				System.out.println("client:"+br.readLine());
    			}
    			socket.close();
    		} catch (UnknownHostException e) {
    			// TODO Auto-generated catch block
    			e.printStackTrace();
    		} catch (IOException e) {
    			// TODO Auto-generated catch block
    			e.printStackTrace();
    		}

控制台消息：

client：

client begin send message...  
?  
client:send:交易结束  
client begin send message...  
交易结束  
  
server：

accept client info:str：?  
交易结束